Question

A rectangular tin 20 cm long and 12 cm wide contains 1680 cm³ of flour. what is the depth of flour in the tin if it is spread evenly.​

Answer 1

Given:

✰ Length of a rectangular tin = 20 cm

✰ Breadth of a rectangular tin = 12 cm

✰ Volume of flour = 1680 cm³

To find:

✠ The depth of flour in the tin.

Solution:

Let's understand the concept first! As we are provided with the length and breadth of the rectangular tin and the volume of a floor, which is equal to the volume of the rectangular tin. So we will use the volume of a rectangle, putting the values in the formula and then doing the required calculations, we will find the depth of the floor or we can say the depth of a rectangular tin.

Let's find out...✧

✭ Volume of rectangle = l × b × d ✭

Here,

• l is the length of a rectangular tin.
• b is the width of a rectangular tin.
• d is the depth of a rectangular tin.

Putting the values in the formula, we have:

➤ 1680 = 20 × 12 × d

➤ d = 1680/(20 × 12)

➤ d = 168/(2 × 12)

➤ d = 84/12

➤ d = 42 cm

∴ The depth of flour in the tin = 42 cm

More Formulae:

• Perimeter of rectangle = 2( length + breadth )

• Area of rectangle = length × breadth

• Length of the diagonal of rectangle = √(a² + b²)

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